"KTSF is an independent television station serving the San Francisco Bay Area. Although licensed to San Francisco, the station's studio building is located in south suburban Brisbane, California. It is owned by Lincoln Broadcasting Company, and broadcasts its digital signal on UHF channel 27 from a transmitter located on San Bruno Mountain."

KTSF was begun by Lillian Lincoln Howell. In 1965 she was issued a broadcast license for a new channel in San Francisco. Her goal was to offer programming to sectors of the market that were not being reached by the television stations then on the air. Her stated mission was to “serve the underserved.” After several years, but when it went on the air for the first time on September 4th, 1976, it began broadcasting with mainly Chinese and Japanese programming. KTSF became the first US broadcaster to carry Asian-language programming.

In the 1980s, KTSF expanded its programming to include Tagalog and Korean content, as well as programming from India and Iran. By 2010, KTSF carried programming in 12 languages, including Mandarin, Cantonese, Taiwanese, Japanese, Vietnamese, Hindi and Tagalog.

-Wikipedia